천문학회보 (The Bulletin of The Korean Astronomical Society)

한국천문학회 (The Korean Astronomical Society)
권호 표지

Optical follow-up observation of three binary black hole merger events with the KMTNet.

  • Kim, Joonho (Center for the Exploration of the Origin of the Universe (CEOU), Department of Physics and Astronomy, Seoul National University) ;
  • Im, Myungshin (Center for the Exploration of the Origin of the Universe (CEOU), Department of Physics and Astronomy, Seoul National University) ;
  • Paek, Gregory S.H. (Center for the Exploration of the Origin of the Universe (CEOU), Department of Physics and Astronomy, Seoul National University) ;
  • Lee, Chung-Uk (Korea Astronomy and Space Science Institute) ;
  • Kim, Seung-Lee (Korea Astronomy and Space Science Institute) ;
  • Choi, Changsu (Center for the Exploration of the Origin of the Universe (CEOU), Department of Physics and Astronomy, Seoul National University) ;
  • Lim, Gu (Center for the Exploration of the Origin of the Universe (CEOU), Department of Physics and Astronomy, Seoul National University) ;
  • Lee, Hyung Mok (Center for the Exploration of the Origin of the Universe (CEOU), Department of Physics and Astronomy, Seoul National University) ;
  • Kim, Sophia (Center for the Exploration of the Origin of the Universe (CEOU), Department of Physics and Astronomy, Seoul National University) ;
  • Hwang, Sungyong (Center for the Exploration of the Origin of the Universe (CEOU), Department of Physics and Astronomy, Seoul National University)
  • 발행 : 2019.10.14
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초록

After the first identification of electromagnetic counterpart of gravitational wave source (GW170817), era of multi-messenger astronomy has begun. For specifying coordinate, magnitude, and host galaxy information, optical follow-up observation of GW source becomes important. The O3 run of LIGO / VIRGO started after April 2019. We present searching strategy of GW optical counterpart using the KMTNet. By performing tiling observation of high probability area in GW localization map, we expect to observe early light-curve of GW optical counterpart. We will also present observation result for three gravitational wave events of binary black hole mergers. After identification of optical counterpart, we will study collision mechanism, progenitor, and characteristics of host galaxy using observation data of GW source.

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